Total Petroleum Hydrocarbons TPH

ESTD, ex situ thermal desorption VOCs, volatile organic compounds TPH, total petroleum hydrocarbons BTEX, benzene, toluene, ethylbenzene, xylene PCBs, polychlorinated biphenyls PAHs, polycyclic aromatic hydrocarbons ISTD, in situ thermal desorption. 

BOD Biological Oxygen Demand COD Chemical Oxygen Demand DO Dissolved Oxygen PAH Polyaromatic Hydrocarbons TIC Total Inorganic Carbon TOC Total Organic Carbon TPH Total Petroleum Hydrocarbons... 

IR = infrared spectrophotometry MS = mass spectrometry MSD = mass selective detector SIM = selected ion monitoring TPH = total petroleum hydrocarbons TRPH = total recoverable petroleum hydrocarbons... 

TPH, Total petroleum hydrocarbons PAH, polycyclic aromatic hydrocarbons. 

MICROWAVE-ASSISTED SOLVENT EXTRACTION AND A NEW METHOD FOR ISOLATION OF TOTAL PETROLEUM HYDROCARBONS (TPH) FROM PLANTS WITH COLUMN CHROMATOGRAPHY (SILICA GEL AND ALUMINA) AND DETERMINATION WITH SPECTROFLUOROPHOTOMETRY... 

The efficiencies of total petroleum hydrocarbons (TPH) transfer into various solvents from plants by microwave enhanced process were extracted. 

Pure M-hexane is widely used in laboratories as an extractant for nonpolar compounds and in calibrating instruments for analyses of volatile organic compounds (VOC) or total petroleum hydrocarbons (TPH) (Kanatharana et al. 1993). Since such analyses may require very high levels of purity, laboratories sometimes carry out their own fractional distillation or other pretreatment-purification procedures to remove petroleum hydrocarbon impurities found in commercially available grades of M-hexane (Kanatharana et al. 1993). See Chapter 6 for more information about testing for -hexane. 

California Department of Health Services, 1989, Total Petroleum Hydrocarbons (TPH) Analysis — Gasoline and Diesel In California Water Resources Control Board Leaking Underground Fuel Tank (LUFT) Manual, Appendix C. 

While the 8-h test results indicated a total petroleum hydrocarbons (TPH) recovery rate of 10 lb/day, this rate probably will not continue. Estimation of the expected long-term recovery rate of TPH by this short-term test data is not a reliable exercise. The data demonstrate the applicability of SVE as a recovery system, but further testing or detailed computer modeling was recommended prior to final design. 

As a resnlt of the wide variety of chemicals in petroleum and in petroleum products, it is not practical to measure each one separately. After an incident, it is more usual to measure the amount of total petroleum hydrocarbons at the site. The term total petroleum hydrocarbons (TPHs) is used environmentally to describe the family of several hundred chemical compounds that originally come from petroleum (Weisman, 1998). 

Total petroleum hydrocarbon (TPH) (Chapter 4) analyses (Tables 7.1 and 7.2) are conducted to determine the total amount of hydrocarbon present in the environment. There are a wide variety of methods for measurement of the total petroleum hydrocarbon in a sample, but analytical inconsistencies must be recognized because of the definition of total petroleum hydrocarbons and the methods employed for analysis (Rhodes et al., 1994). Thus, in practice, the term total petroleum hydrocarbon is defined by the analytical method since different methods often give different results because they are designed to extract and measure slightly different subsets of petroleum hydrocarbons. 

The analysis for the total petroleum hydrocarbons (TPHs) in a sample as a means of evaluating petroleum-contaminated sites is also an analytical method in common use. The data are used to establish target cleanup levels for soil or water by regulatory agencies in the United States and in many other countries. 

Total petroleum hydrocarbons (TPHs) a family of several hundred chemical compounds that originally come from petroleum. 

In New York and Massachusetts where PCB contamination is always a possibility, the laboratory tests required by the state environmental protection agencies for analysis of a petroleum-contaminated soil are as follows (a) flash point (b) total petroleum hydrocarbon (TPH) (c) PCB screening (d) total organic halides (TOH) (e) reactivity of cyanide and sulfide (f) BTEX or equivalent (g) eight metals under TCLP (Toxicity Characteristics Leaching Procedure) for USTs and (h) full range of tests under TCLP for ASTs and spills. 

The Microwave-Assisted Process (MAP ) technology uses microwaves, and solvents that are relatively transparent to microwaves, to extract chemicals from various matrices based on the temperature differential between the solvent and the target compound. According to the developers, the technology is applicable to soils and wastes containing polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), total petroleum hydrocarbons (TPH), and other organic compounds. 

Franl ort, Indiana. This project involved full-scale remediation of an leaking underground storage tank (LUST) site. The site contained 1238 tons of soil contaminated with total petroleum hydrocarbons (TPH). The area of contaminated soil was 27 by 55 ft across and 15 ft deep. TPH concentrations were reduced from 1200 parts per million (ppm) to nondetectable levels in 82 days. The cost of the project was 13,600. This cost included mobilization, demobilization, and in situ BIO-INTEGRATION treatment (D17796C, p. 1). This breaks down to approximately ll/ton of soil treated. 

DO-IT has been used at several sites to treat benzene, toluene, ethyl benzene, and xylene (BTEX), methyl ferf-butyl ether (MTBE), and total petroleum hydrocarbons (TPH). According to the vendor, this technology may also be applied or modified to clean up any aerobically biodegradable contaminants in soil. 

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